PH67600: DFHXM0002 A severe error (code X'1007') has occurred in module DFHXMIQ. XmTxn control blocks become orphaned.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• CICS is running a Liberty workload and starts to issue messages:
  DFHXM0002 A severe error (code X'1007') has occurred in module
  DFHXMIQ.
  
  Analysis of the CICS trace shows:
  Unexpected_return_code_from_DSBR_INQUIRE_TASK_request
  
  CICS has issued EXEC CICS INQURE TASK LIST.
  XM Domain has a XmTxn control block for a task,
  but that task is not known to DS domain (XM_TXN_DS_TASK_TOKEN
  does not contain a current token),
  and the task is not known to KE domain (XM_TXN_KE_TASK_TOKEN
  is nulls).
  This is detected and reported by the XM0002 message and dump.
  
  In one reported instance of the problem, Omegamon was abending
  tasks (code RLEL).
  
  In another instance of the problem, a user was debugging a
  CICS Liberty transaction with the CEDX (EDF) debugger.
  DFHSJ0002 CODE X'0B19' was reported earlier in CICS JESMSGLG
  
  CPSM users may also see symptoms such as
  EYUXL0905E reporting Abend AEXZ in CICSPlex SM Methods NMCR
  (transaction CONM),
  NQCR (transaction CONL or CONA) and NLHS (transaction COIE),
  with the following stacks:
     Methods=NMCR,NMMC,NMRT,XLOP
     Methods=NQCR,NLRA,XLOP
     Methods=NLHS,NLHD,XLOP
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: DFHSJ0002 or DFHXM0002 in DFHXMIQ       *
  *                      during active EDF session on CJSA with  *
  *                      deleted TERMINAL.                       *
  ****************************************************************
  When there is an active CEDX session on CJSA with a JVM server
  running a web application, if the TERMINAL is deleted,
  subsequent web requests to the JVM server will result in a
  DFHSJ0002 and the web request will receive an HTTP 500 result.
  If the CJSA TCB is reused, and then deleted a DFHXM0002 will
  be issued.
  
  CPSM users may observe a EYUXL0905E.
  
  Omegamon users may observe tasks abending with code RLEL.
  

Problem conclusion

• CICS has been updated so that this DFHSJ0002 and DFHXM0002 no
  longer occur.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UO07114 UO07115

Modules/Macros

• DFHEDFX  DFHSJJS  DFJ@H387 DFJ@H639
  

Fix information

• Fixed component name

  CICS TS Z/OS V6

• Fixed component ID

  5655YA100

Applicable component levels

• R400 PSY UO07115

     UP26/03/13 P F603

• R500 PSY UO07114

     UP26/03/18 P F603

Fix is available

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